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[thach] /θætʃ/
Also, thatching. a material, as straw, rushes, leaves, or the like, used to cover roofs, grain stacks, etc.
a covering of such a material.
the leaves of various palms that are used for thatching.
something resembling thatch on a roof, especially thick hair covering the head:
a thatch of unruly red hair.
Horticulture. a tightly bound layer of dead grass, including leaves, stems, and roots, that builds up on the soil surface at the base of the living grass of a lawn.
verb (used with object)
to cover with or as if with thatch.
Horticulture. to remove thatch from (a lawn); dethatch.
Origin of thatch
before 900; (v.) Middle English thacchen, variant (with a from thak > dial. thack) of thecchen, Old English theccan to cover, hide; cognate with Dutch dekken (see deck), German decken, Old Norse thekja; (noun) Middle English thacche, variant (with ch from the v.) of thak
Related forms
thatchless, adjective
thatchy, adjective
rethatch, verb (used with object)


[thach] /θætʃ/
Edward, Teach, Edward. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for thatch
Contemporary Examples
Historical Examples
  • Always used of the gable loft, you know, and the wind above the thatch.

    The Manxman Hall Caine
  • Henry has often been on the thatch of the barn and never got hurt.

    The Fairchild Family Mary Martha Sherwood
  • I've seen them set fire to the thatch of the widow and childless.

    Romance Joseph Conrad and F.M. Hueffer
  • The same, the very same it is, save that the thatch has been renewed!

    St. Cuthbert's Robert E. Knowles
  • thatch well sodden with winter's rain does not blaze or crackle.

    Two Sides of the Face Arthur Thomas Quiller-Couch
  • The frame, we know, was of timber, and the roof248 of thatch.

    Shakespearean Playhouses

    Joseph Quincy Adams
  • Ropes were flung over the thatch to keep the roof on in wind.

    A Window in Thrums

    J. M. Barrie
  • He's taken the pike with him that lay in the thatch over our bed this year and more.

    The Northern Iron George A. Birmingham
British Dictionary definitions for thatch


  1. Also called thatching. a roofing material that consists of straw, reed, etc
  2. a roof made of such a material
anything resembling this, such as the hair of the head
Also called thatch palm. any of various palms with leaves suitable for thatching
to cover (a roof) with thatch
Derived Forms
thatcher, noun
thatchless, adjective
thatchy, adjective
Word Origin
Old English theccan to cover; related to thæc roof, Old Saxon thekkian to thatch, Old High German decchen, Old Norse thekja
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for thatch

Old English þeccan "to cover," related to þæc "roof, thatching material," from Proto-Germanic *thakan (cf. Old Saxon thekkian, Old Norse þekja, Old Frisian thekka, Middle Dutch decken, Old High German decchen, German decken "to cover"), from PIE *(s)tog-/*(s)teg- "cover" (see stegosaurus).


Old English þæc "roof, thatch," from the source of thatch (v.). Cf. Old Norse þak, Old Frisian thek, Middle Dutch dak "roof," Old High German dah, German Dach "roof."

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for thatch



Pubic hair: love to get under her thatch (1933+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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